Installing a torsion spring system for a garage door is a crucial task that requires care, the right tools, and attention to safety. Torsion springs balance the door’s weight and enable smooth opening and closing. Below is a detailed guide for installing these springs, whether for a new garage door or a replacement of an existing system.
Important Safety Warning
Torsion springs are under high tension and can be very dangerous. Improper installation can lead to serious injury or property damage. Always wear safety glasses and gloves, use the correct winding bars, and follow instructions precisely. If unsure, hire a professional.
Tools and Materials Needed
- Two 18-inch solid steel winding bars
- Socket wrench (7/16” and 3/8” sizes)
- Locking pliers (vise grips)
- Tape measure and pencil
- Level
- Step ladder
- Replacement torsion springs and hardware (cable drums, winding cones, shaft, center bearing plate)
Step-by-Step Installation Instructions
- Preparation and Setup
- Lift the garage door and prop it open about halfway, supporting it safely.
- Remove old spring assembly if present. Ensure all parts are removed from the torsion tube.
- Inspect the door and track for any damage or misalignment.
- Install the Center Bearing Plate and Wood Anchor Pad
- Drill pilot holes and secure the wood anchor pad centered above the door opening.
- Attach the center bearing plate onto the wood anchor pad using lag screws; ensure it’s level.
- Install Cable Drums and Torsion Tube
- Slide one cable drum onto one end of the torsion tube with the cable slot facing out.
- Slide the torsion springs onto the tube (left wind spring on right side, right wind spring on left side from inside looking out).
- Place the other cable drum on the opposite end.
- Lift the entire assembly and place the torsion tube ends into the end bearing plates.
- Attach Springs and Secure Everything
- Push springs fully against the winding cones on the tube. Check spring direction and proper fit.
- Secure drum set screws snugly (do not overtighten).
- Attach cables to the bottom brackets of the door, running cables into the grooves of the drums.
- Secure the shaft retainer and rewind the torsion spring as per door height.
- Wind the Springs to Proper Tension
- Use winding bars to turn each spring the correct number of turns based on the door height (e.g., 7-foot door: 16 turns).
- Wind slowly and carefully, holding the bars firmly.
- Tighten the set screws on the winding cones securely after winding.
- Test Operation
- Remove door supports and manually operate the door.
- The door should stay open approximately halfway without assistance.
- Connect the opener and test several opening and closing cycles.
- Make Necessary Adjustments
- If door is too heavy or light, adjust tension by adding or removing quarter turns.
- Adjust cable tension if door is not level.
FAQ About Torsion Spring Garage Door Installation
Can I install torsion springs myself?
Only if you have mechanical skills, the right tools, and strictly follow safety precautions.
How do I know how many turns to wind the springs?
The number of turns depends on your door height. Most instructions provide tables, e.g., 14-18 turns for typical residential doors.
What if I wind the spring incorrectly?
If wound wrong or on the wrong side, the door will not balance and can cause damage or injury. Double-check winding direction and counts.
How often should torsion springs be replaced?
On average every 7-10 years or after about 10,000 cycles.
Proper installation of torsion springs will ensure safe, smooth, and reliable garage door operation. Always prioritize safety and consider professional installation if uncertain.
Dmytro Shevchenko is the owner of Prime Garage Door Repair, a trusted garage door repair company serving the Chicagoland area. Based in Mundelein, IL, he leads a team of certified technicians specializing in emergency repairs, opener and spring replacement, and complete garage door installation.
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